Bjørgen et al. (2008)reported increasing the H-ZSM-5 zeolite acidity, be desilication with 0.05e0.20 M NaOH, to
enhanced catalytic activity. It was observed that, the most severely
desilicated catalyst produced optimal conversion that was 3.3 times
more stable than for the untreated catalyst. On the other hand, the
overall selectivity to gasoline hydrocarbons multiplied by 1.7, due
to increase in the speed of hydrogen transfer reactions.